NOTE- IS: · 1m TABLE 10 WELDING NECK FLANGES (Clausts alld IS. 63ft • It71 TABLE 11 PLATE FLANGES FOR WELDING. NOM SIZE, FLANGE, RAISED FACE, DRILLING, NECK. D, b, h1, d4, f, BOLT NO, NO. d2, K, d3, h2, r. , , 26, 70, , 5, M27, S2, 30, , , Phone: + Specification For Flanges. Flanges. As per B.S 10 Flanges. Welding Pressure. 10 Kgs. / cm2 equivalent. ND 10/IS: T/

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Carbon Steel ASTM 105 Spectacle Blind Flanges

Post on Nov 5. Where machining is carried out it may be either by spot facing at the bolt holes or by back facing at the option of the manufacturer.

Norm — The two types of Ranges shown arc alternatives at the option All dimensions in millimctres. Use this table also for nominal sizes 6 to 65 mm for 1. API category B Pressure temperature rating: Details o P conditions under which a licence for the use of the ISI Certification Mark may be granted to manufacturers or processors, may be obtained from the Indian Standards Institution.

The ultimate in high performance Butterfly valves, IV’s IVEX-series incorporates the ‘state of the art’ valve technology to out perform the competition. Soft seated, Fire safe and Metal to Metal seated with wafer or wafer lugged body option.

C 70 80 80 80No. This general purpose soft seated Butterfly valve has a fully rubber lined single piece body with a centric disc construction and is available in wafer lugged style body pattern to ensure precise location in pipeline. The valve is available in ‘wafer’ as well as ‘wafer lugged’ version with a host of seat and encapsulation material to cater to majority of the chemical process industry requirement. Carbon and Carbon Matzganese Steele 1.


The type of protector and method of attachment shall be approved by the purchaser. The top shaft sealing is through stuffing box type gland sealing arrangement, which is field adjustable. The valve is available with 3 distinctly different seat design versions, viz. However, a quality factor of 0. Ail dimensions in millimetres.

Pressure Pressure Allowable Allowable Other ratings at primary service Gmperature, ratings at any other temperature, rS II T,stress value at primary service temperaturt- stress value at any temperature, 7, properties Proper9 are given below: After welding, flanges shall be heat-treated, except that welds required for finish- and appearances only need not be heat treated, if approved by the purchaser.

The disc has a spherical profile and comes out of contact with seat in the initial opening itself.

Alloy steel flanges shall be marked with the symbols designated in Table 1. The thickness of the portion of the flange which connects it to the pipe should be not less than the pipe thickness nor more than 3 mm thicker. For alloy steel studs or bolts, nuts of a similar steel, If carbon steel is used, it shall have but of a different qrade shall be used.

Outside Diameter D Machined Up to nun inclusive Over Over mm to mm inclusive mm lo mm inclusive f f 1 mm 1. All dimckonr N–Far in millimetres.


Intervalve’s GKL series valves are designed to meet the demanding requirements of the general utility valve market with the HVAC segment in particular. If repairs by welding arc carried out, the castings shou! Ilangcs the bolt holes shall be drilled off centres. Flanges not integral Machined at Back. This general purpose soft seated Butterfly valve has a fully rubber lined single piece body with centric disc construction and is available in wafer type body pattern.

The valve’s unique design totally eliminates media contact with any metallic surface of the valve. The valve has excellent throttling characteristics with good low flow control capability, which offers an inherently higher rangeability.

Carbon Steel ASTM Spectacle Blind Flanges

The fully circular back up elastomer and live loaded disc shoulder sealing ensures bubble tight closing flangez the Valve with zero shaft leakage. If the difference is more than 3 mm, it may be ncgotiatcd in a slope of 1 in 5. When the welding of defects is permitted, the welding rod shall be such as to produce a weld having characteristics similar to the parent metal.

Its rlanges body makes it easy for seal replacement during maintainance. The valve has a fully rubber lined body and a rubber encapsulated disc with a square slot for the drive end shaft.

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